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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/tools/clippy/tests/ui/absurd-extreme-comparisons.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/clippy/tests/ui/absurd-extreme-comparisons.rs')
-rw-r--r--src/tools/clippy/tests/ui/absurd-extreme-comparisons.rs61
1 files changed, 61 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/absurd-extreme-comparisons.rs b/src/tools/clippy/tests/ui/absurd-extreme-comparisons.rs
new file mode 100644
index 000000000..f682b280c
--- /dev/null
+++ b/src/tools/clippy/tests/ui/absurd-extreme-comparisons.rs
@@ -0,0 +1,61 @@
+#![warn(clippy::absurd_extreme_comparisons)]
+#![allow(
+ unused,
+ clippy::eq_op,
+ clippy::no_effect,
+ clippy::unnecessary_operation,
+ clippy::needless_pass_by_value
+)]
+
+#[rustfmt::skip]
+fn main() {
+ const Z: u32 = 0;
+ let u: u32 = 42;
+ u <= 0;
+ u <= Z;
+ u < Z;
+ Z >= u;
+ Z > u;
+ u > u32::MAX;
+ u >= u32::MAX;
+ u32::MAX < u;
+ u32::MAX <= u;
+ 1-1 > u;
+ u >= !0;
+ u <= 12 - 2*6;
+ let i: i8 = 0;
+ i < -127 - 1;
+ i8::MAX >= i;
+ 3-7 < i32::MIN;
+ let b = false;
+ b >= true;
+ false > b;
+ u > 0; // ok
+ // this is handled by clippy::unit_cmp
+ () < {};
+}
+
+use std::cmp::{Ordering, PartialEq, PartialOrd};
+
+#[derive(PartialEq, Eq, PartialOrd)]
+pub struct U(u64);
+
+impl PartialEq<u32> for U {
+ fn eq(&self, other: &u32) -> bool {
+ self.eq(&U(u64::from(*other)))
+ }
+}
+impl PartialOrd<u32> for U {
+ fn partial_cmp(&self, other: &u32) -> Option<Ordering> {
+ self.partial_cmp(&U(u64::from(*other)))
+ }
+}
+
+pub fn foo(val: U) -> bool {
+ val > u32::MAX
+}
+
+pub fn bar(len: u64) -> bool {
+ // This is OK as we are casting from target sized to fixed size
+ len >= usize::MAX as u64
+}